Solution - Long subtraction
56.52
Step-by-step explanation
1. Rewrite the numbers from top to bottom, aligned by their place values
| Place value | tens | ones | . | tenths | hundredths |
| 5 | 8 | . | 7 | 1 | |
| - | 2 | . | 1 | 9 | |
| . |
2. Subtract the numbers using long subtraction method
Because the upper digit (1) in the hundredths column is too small to get a positive difference, borrow 1 from the digit (7) in the next number place which becomes (6) and get (11).
| Place value | tens | ones | . | tenths | hundredths |
| 6 | 11 | ||||
| 5 | 8 | . | 7 | 1 | |
| - | 2 | . | 1 | 9 | |
| . |
Subtract the numbers in the hundredths column from the top number:
11-9=2
| Place value | tens | ones | . | tenths | hundredths |
| 6 | 11 | ||||
| 5 | 8 | . | 7 | 1 | |
| - | 2 | . | 1 | 9 | |
| . | 2 |
Subtract the numbers in the tenths column from the top number:
6-1=5
| Place value | tens | ones | . | tenths | hundredths |
| 6 | 11 | ||||
| 5 | 8 | . | 7 | 1 | |
| - | 2 | . | 1 | 9 | |
| . | 5 | 2 |
Subtract the numbers in the ones column from the top number:
8-2=6
| Place value | tens | ones | . | tenths | hundredths |
| 6 | 11 | ||||
| 5 | 8 | . | 7 | 1 | |
| - | 2 | . | 1 | 9 | |
| 6 | . | 5 | 2 |
Write 5 in the tens place.
| Place value | tens | ones | . | tenths | hundredths |
| 6 | 11 | ||||
| 5 | 8 | . | 7 | 1 | |
| - | 2 | . | 1 | 9 | |
| 5 | 6 | . | 5 | 2 |
The solution is: 56.52
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